Blub Blub
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For PFS, you could take a two level dip into Alchemist for a Vestigial Arm (or two!) that you could use for reloading.
If you can score a Tiefling Boon, and your Tiefling has the Prehensile Tail alternate racial trait, you can pick up the Grasping Tail feat and use your tail to hold your crossbow while you reload it.
For 10,000gp you could also pick up a Glove of Storing.